浙江浙一电气有限公司

概述 Overview

本标准规定了GKD 系列矿用一般型低压开关柜( 以下简称开关柜) 的型号和基本参数、技术要求、试验方法、检验规则及标志、包装、运输、贮存。

本开关柜适用于非煤矿山等其它类似的矿井下中央控制室、井底停车场、主要通风道机电岷室的供电系统中，为1140(660、380)V系统中的动力、配电、照明、电机及其它电气设备受电、馈电、控制和保护及电源变换设备，本开关柜同样适用于地面变电站和冶金、化工、电力等部门的供电系统。

This standard specifies the models, basic parameters, technical requirements, test methods, inspection rules, marking, packaging, transportation, and storage of GKD series general low-voltage switchgear for mining (hereinafter referred to as switchgear).

This switchgear is suitable for power supply systems in central control rooms, underground parking lots, and main ventilation ducts in mines other than coal mines. It is used for power, distribution, lighting, motor and other electrical equipment receiving, feeding, control and protection, and power conversion equipment in 1140 (660, 380) V systems. This switchgear is also suitable for power supply systems in ground substations and metallurgy, chemical, power and other departments.

产品型式及标志 Product type and logo

◆ 矿用一般型，标 志 ：KY

◆ 金属非金属矿山矿用产品安全标志标识：KA。

◆ General mining type, marked: KY

◆ Safety Mark Identification for Mining Products in Metal and Non Metal Mines: KA。

基本参数Basic parameters

开关柜的主要额定参数如下：

断路器主要额定参数见表：

The main rated parameters of the circuit breaker are shown in the table:

技术要求 Technical requirement

4.1 环境条件

正常工作条件应在下列规定的范围内：

a) 周围空气温度上限为+40℃ , 下限为-20℃。

b) 海拔高度：不超过2000m。

c) 周围空气平均相对湿度不大于95%(25℃ )。

d) 在无破坏绝缘的气体或蒸汽环境中。

e) 固定安装使用。

4.2 工作条件

不符合

4.1 规定的工作条件为工作条件，按与用户签订的协议制造。

4.3 设计和结构

4.3.1 壳体制造与偏差

壳体应按规定的图样制造。

外壳采用2.5mm 冷轧钢板焊接而成，内部支撑结构采用2.0~3.0mm 冷轧钢板制造。

4.3.2 外观

4.321 开关柜的面板、箱体表面应整洁、美观、牢固、不得有起泡、变形和流痕等现象。

4.3.2.2 开关柜的表面应标有" 严禁带电开门" 的警告字样。

4.3.2.3 开关柜内母线的标记颜色及相序应符合表2 的规定。

4.3.2.4 开关柜接地螺钉直径不小于8mm, 接地螺钉应标有接地符号

4.1 Environmental conditions

Normal working conditions should be within the range specified below:

a) The upper limit of ambient air temperature is+40 ℃ , and the lower limit is -20 ℃ .

b) Altitude: not exceeding 2000m.

c) The average relative humidity of the surrounding air is not greater than 95% (25 ℃ ).

d) In a gas or steam environment that does not damage insulation.

e) Fixed installation and use.

4.2 Special working conditions

not in accordance with

The working conditions specified in 4.1 are special working conditions, manufactured according to the agreement signed with the user.

4.3 Design and Structure

4.3.1 Shell Manufacturing and Deviation

The shell should be manufactured according to the specified drawings.

The outer shell is welded with 2.5mm high-quality cold-rolled steel plate, and the internal support structure is made of 2.0-3.0mm high-quality cold-rolled steel plate.

4.3.2 Appearance

The surface of the panel and box of the 4.321 switchgear should be clean, beautiful, firm, and free of bubbles, deformations, and flow marks.

4.3.2.2 The surface of the switchgear should be marked with a warning message "Do not open the door with power on".

4.3.2.3 The marking color and phase sequence of the busbar inside the switchgear shall comply with the provisions of Table 2.

4.3.2.4 The diameter of the grounding screw for the switchgear shall not be less than 8mm, and the grounding screw shall be marked with a grounding symbol

4.3.3 通电操作

进行通电操作，检查线路的正确性。

4.3.4 紧固件

紧固件材料应适用于外壳材料，且螺栓直径应不小于M6.

4.3.5 电缆引入装置

电缆引入装置不应有尖锐棱角，以防损伤电缆。

设备外壳上不装电缆或导管引入装置的通孔应使用封堵件。

4.3.3 Power on operation

Perform power on operation and check the correctness of the circuit.

4.3.4 Fasteners

The fastener material should be suitable for the shell material, and the bolt diameter should not be less than M6

4.3.5 Cable entry device

The cable entry device should not have sharp edges to prevent damage to the cable.

The through holes on the equipment casing that do not have cable or conduit entry devices should be sealed with sealing components.